Improvement in metal cans for paint



G. H. CHIN'NOCK.

Improvement in Metal Cans for Paint, &c.

N0, I33,203, Patented Nov.19,18 72.

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GEORGE H. OHINNOOK, OF BROOKLYN, NEW YORK, ASSIGN OR TO LEONARDRICHARDSON, OF SAME PLACE.

IMPROVEMENT IN METAL CANS FOR PAlNT, &c.

Specification forming part of Letters Patent No. 133,203, dated November19, 1872.

To all whom it may concern:

Be it known that I, GEORGE H. CHINNOOK, of Brooklyn, in the county ofKings and State of New York, have invented certain Improvements inSheet-Metal Cans, of which the following is a specification:

This invention relates to that class of cans made, preferably, ofsheet-tin, and used for holding, hermetically sealed, paint, preservedfruits, condensed milk, and other substances. Its object is to provide acan, of any suitable or required configuration, that may be readilyopened, when desired, without trouble, and without the disfigurementincident to opening I the ordinary metal-topped cans by the use of acutting instrument, and also to enable the cover to be temporarilyemployed for covering thecan after the same has been opened, and topermit the reattachment of the cover by soldering, when desired. Theinvention consists in a sheet-metal strip soldered to an annular flanchformed upon the'cover and to the upper or circumferential edge of thecan, and furnished with a loose flap or extension in such manner as tofirmly and closely attach the cover to the can, and at the same timepermit the removal, when required, of the said cover by tearing loosethe strip from the solder holding it in place. The invention alsoembraces certain novel means .whereby the operation of soldering thestrip in place in the attachment of the cover is very greatlyfacilitated, and whereby the cover is fitted for reuse after having beenremoved from the can.

Figure 1 is a horizontal sectional view of a can made according to myinvention taken in the line :0 m of Fig. 2. Fig. 2 is a centralverticallsectional view of the upper part of the said can. Fig. 3 is aside view of the same.

The can A, of sheet-tin or equivalent material, may be of the ordinarycylindrical form, with a bottom attached in any appropriate The top orupper edge has provided immediately below it an annular orcircumferential groove, a, semicircular in its crosssection, and havingbelow it, formed in the contiguous metal of the side of the can, acircumferential rabbet, 0, about equal in depth to the thickness of themetal of which the can is made. The upper edge of the can is coincidentwith the sides thereof-in other words,

extends outward the same distance from the center. The cover B is alsoof sheet metal and formed with the downwardly-extending flanch fat itsperiphery. At the upper edge of the flanch f is formed the annular riba, immediately below which the flanch has provided in it a groove orannular depression 0. The width of the flanch is such that when thecover is applied to the can the lower edge of the said flanch will beabout midway across the groove a. The cover being thus put in its place,a strip, 0, of sheet metal, of such width that one of its edges will lienearly across the groove 6 of the flanch and the other lie in the rabbetc, is placed around the flanch and the adjacent portion of the can. Thestrip 0 is of such length as to pass somewhat more than once around thecan, so that when the strip is soldered or attached in place the extralength or extension Asay of one inch-will be left free, for the purposehereinafter specified. The strip 0 being placed in position, as setforth, soft solder is applied, and, by the appropriate use of asoldering-iron, is swept along both edges of the strip and solders thesame fast, one to the flanch f of the cover, and the other to the upperpart of the can A, the allnular rib a preventing the overflow at the oneedge of the metal solder and the groove "6 under the same edgepermitting its passage about such edge, to secure a more efficientaction of the solder. The overflow of the sol der at the opposite edgeof the strip is prevented by the relatively raised portion formedcontiguous thereto from the placing of the aforesaid edge in the rabbetc. This soldering, it must be observed -secures the strip firmly to theflanch and to the can around their entire circumference, thushermetically fixing the one to the other, but does not we tend to theextra length or extension A, which lies loose therefrom, but in closecontact with the adjacent surface of the can.

It will be seen that the strip 0, soldered as aforesaid, securelyattaches the cover to the can. Also, that by seizing the extension A ofthe strip with any appropriate implement, or even, if such extension beof sufficient length, with the hand, and applying force, the strip maybe readily stripped or pulled from its place, the soft solder yieldingto a moderate force thus exerted. Also, that the groove it prevents anyspreading of the solder underneath the strip from the edge of the can tothe edge of the flanch, which might otherwise occur and produce theinjurious and undesired result of soldering directly the said edges.Also, that the flanch, being arranged to overlap the upper edge of thecan, the cover maybe applied for the temporary coverin g of the sameafter the opening of the can by the removal of the strip; and,furthermore, may be reused in the same manner as before by simplysoldering in place the same or another strip. Also, that a smooth edgebeing left at the top of the can when opened, the ragged edge formed bycutting open an ordinary metal-topped can, which, in paint cans, isliable to injure the painters brush, is wholly avoided, as is also theliability of cutting ones self and of smearing the contents of the canupon the exterior of the same, incident to opening such cans in theordinary manner with a cutting instrument.

What I claim asmy invention is- 1. The strip 0, soldered to the loweredge of the flanch f and to the upper edge of the can, and furnishedwith the extension A, substantially as and for the purpose specified.

2. The arrangement, with reference to the flanch f, of the cover B andthe circumferential edge of the can, of the groove 6 and rabbet 0,provided, respectively, upon the said flange and edge, substantially asand for the purpose specified.

3. The circumferential groove to, provided at the edge of the can and inrelation to the flanch of the cover, and the overlying soldered strip 0,substantially as and for the purpose herein set forth.

GEO. H. OHINNOOK.

Witnesses: I

EDWARD TYRNEs, LEONARD RICHARDSON.

